Quantum

Paper

Entanglement growth in the dark intervals of a locally monitored free-fermion chain

Giovanni Di Fresco, Youenn Le Gal, Davide Valenti, Marco Schiró, and Angelo Carollo,

Quantum 10, 2183 (2026).

We consider a free fermionic chain with monitoring of the particle density on a single site of the chain and study the entanglement dynamics of quantum jump trajectories. We show that the en…

Paper

On the quantum computational complexity of classical linear dynamics with geometrically local interactions: Dequantization and universality

Kazuki Sakamoto and Keisuke Fujii,

Quantum 10, 2182 (2026).

The simulation of large-scale classical systems in exponentially small space on quantum computers has gained attention. The prior work demonstrated that a quantum algorithm offers an exponen…

Paper

Entanglement-assisted Quasi-cyclic Quantum Low-density Parity-check Codes over Qubits

Pavan Kumar, Abhi Kumar Sharma, Karthik Bharadwaj, and Shayan Srinivasa Garani,

Quantum 10, 2181 (2026).

We construct several families of entanglement-assisted quasi-cyclic quantum LDPC (EA-QC-QLDPC) codes via structured tilings of permutation matrices. The entanglement-unassisted portion of th…

Paper

Quantifiers and witnesses for the nonclassicality of measurements and of states

Yujie Zhang, Yìlè Yīng, and David Schmid,

Quantum 10, 2180 (2026).

In recent work [Phys. Rev. X 16, 021050], we proposed a unified notion of nonclassicality that applies to arbitrary processes in quantum theory, including individual quantum states, measurem…

Paper

Stabilizer Ranks, Barnes Wall Lattices and Magic Monotones

Amolak Ratan Kalra and Pulkit Sinha,

Quantum 10, 2179 (2026).

In 2024, Kliuchnikov and Schönnenbeck showed a connection between the Barnes Wall lattices, stabilizer states and Clifford operations. In this work, we study their results and relate them to…

Paper

Modulator-Assisted Zeno Control of Energy Transfer in Quantum Batteries

Songbo Xie, Manas Sajjan, Ashok Ajoy, and Sabre Kais,

Quantum 10, 2178 (2026).

Efficient operation of quantum batteries requires not only fast energy transfer but also the ability to halt the charging process to prevent reverse flow. Existing approaches typically rely…

Paper

atommovr: An open-source simulation framework for rearrangement in atomic arrays

Nikhil K Harle, Bo-Yu Chen, Bob Bao, and Hannes Bernien,

Quantum 10, 2177 (2026).

The task of atom rearrangement has emerged in the last decade as a fundamental building block in the development of neutral atom-based quantum processors. As such processors grow to thousand…

Paper

Dynamical codes for hardware with noisy readouts

Peter-Jan H.S. Derks, Alex Townsend-Teague, Jens Eisert, Markus S. Kesselring, Oscar Higgott, and Benjamin J. Brown,

Quantum 10, 2176 (2026).

Dynamical stabilizer codes may offer a practical route to large-scale quantum computation. Such codes are defined by a schedule of error-detecting measurements, which allows for flexibility…

Paper

A partition function framework for estimating logical error curves in stabilizer codes

Leon Wichette, Hans Hohenfeld, Elie Mounzer, and Linnea Grans-Samuelsson,

Quantum 10, 2175 (2026).

Based on the mapping between stabilizer quantum error correcting codes and disordered statistical mechanics models, we define a ratio of partition functions that measures the success probabi…

Paper

Quantum nonlocality without entanglement and state discrimination measures

Shayeef Murshid, Tathagata Gupta, Vincent Russo, and Somshubhro Bandyopadhyay,

Quantum 10, 2174 (2026).

An ensemble of product states is said to exhibit “quantum nonlocality without entanglement” if it cannot be optimally discriminated using local operations and classical communication (LOCC).…

Paper

Pilot-Wave Simulator: Exact Classical Sampling from Ideal and Noisy Quantum Circuits up to Hundreds of Qubits

Gleb Kalachev, Pavel Mosharev, Zuoheng Zou, Pavel Panteleev, and Man-Hong Yung,

Quantum 10, 2173 (2026).

Quantum circuit simulators running on classical computers offer a vital platform for designing, testing, and optimizing quantum algorithms, driving innovation despite limited access to real…

Paper

Hoare meets Heisenberg: A Lightweight Logic for Quantum Programs

Aarthi Sundaram, Robert Rand, Kartik Singhal, Youngchan Cho, and Brad Lackey,

Quantum 10, 2172 (2026).

We show that Gottesman's (1998) semantics for Clifford circuits based on the Heisenberg representation gives rise to a lightweight Hoare-like logic for efficiently characterizing a common su…

Paper

A complete theory of the Clifford commutant

Lennart Bittel, Jens Eisert, Lorenzo Leone, Antonio A. Mele, and Salvatore F.E. Oliviero,

Quantum 10, 2171 (2026).

The Clifford group plays a central role in quantum information science. It is the building block for many error-correcting schemes and matches the first three moments of the Haar measure ove…

Paper

Controller-decoder system requirements derived by implementing Shor’s algorithm with surface code

Yaniv Kurman, Lior Ella, Nir Halay, Oded Wertheim, and Yonatan Cohen,

Quantum 10, 2170 (2026).

Quantum Error Correction (QEC) is regarded as the most promising path to quantum advantage. The success of QEC relies on achieving quantum gate fidelities below the error threshold of the QE…

Paper

Non-commutative optimization problems with differential constraints

Mateus Araújo, Andrew J. P. Garner, and Miguel Navascues,

Quantum 10, 2169 (2026).

Non-commutative polynomial optimization (NPO) problems seek to minimize the state average of a polynomial of some operator variables, subject to polynomial constraints, over all states and o…

Paper

Quantum state preparation with optimal T-count

David Gosset, Robin Kothari, and Kewen Wu,

Quantum 10, 2168 (2026).

How many $T$ gates are needed to approximate an arbitrary $n$-qubit quantum state to within error $\varepsilon$? Improving prior work of Low, Kliuchnikov, and Schaeffer, we show that the optimal a…

Category: Paper